. The American annual of photography. Figure 3 This means, as a little reflection will show, that to get asgood an illumination with the cinema film as with the lanternslide nine times as much light will be needed, because thesame light has to be spread over a space nine times the a smaller film mask the difference is greater still. Itmust be remembered, also, that the whole of the light isavailable for the lantern, whereas in the ordinary type ofcinematograph a portion is lost through the intermittent inter-position of the shutter. Yet the amateur cinematographer is perpetually vent
. The American annual of photography. Figure 3 This means, as a little reflection will show, that to get asgood an illumination with the cinema film as with the lanternslide nine times as much light will be needed, because thesame light has to be spread over a space nine times the a smaller film mask the difference is greater still. Itmust be remembered, also, that the whole of the light isavailable for the lantern, whereas in the ordinary type ofcinematograph a portion is lost through the intermittent inter-position of the shutter. Yet the amateur cinematographer is perpetually ventilatinghis grievance, in very much the following style: I have alantern with a four-burner acetylene jet, and it gives a well-lit 82
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorktennantandw
